Appendix 2-J

Transitions of physiognomic types to other physiognomic types by potential vegetation group (PVG) for

historic to current and current to alternative futures.

Landscape Ecology 3£»!
Transitions to Other Physiognomic types - Cold 

BLM / FS Lands

Historic to Current Transitions Alternative 1 C

Historic Physiognomic Type Current P

Alternative 2 Current to Future Alternative 3 

Early-serai intolerant forest (ESIF)

Early-serai tolerant forest (ESTF)

Mid-serai intolerant forest (MSIF)

Mid-serai tolerant forest (MSTF)

Late-serai intolerant forest single-layer (LSIF-SL)

Late-serai intolerant forest multi-layer (LSIF-ML)

Late-serai tolerant forest single-layer (LSTF-SL)

Late-serai tolerant forest mullti-layer (LSTF-ML)

Current Physiognomic Type

_.„.__* <__ A /^«*M^\ •••••••••

Current 
Transitions to Other Physiognomic Types - Cold Fo

BLM/FS Lands

Alternative 4 Current to Future Alternative 5 

Current Physiognomic Type

Alternative 6 Current to Future Alternative 7 C

Early-serai intolerant forest (ESIF)

Early-serai tolerant forest (ESTF)

Mid-serai intolerant forest (MSIF)

Mid-serai tolerant forest (MSTF)

Current Physiognomic Type

Late-serai intolerant forest single-layer (LSIF-SL)

Late-serai intolerant forest multi-layer (LSIF-ML)

Late-serai tolerant forest single-layer (LSTF-SL)

Late-serai tolerant forest mullti-layer (LSTF-ML)

Current 
Transitions to Other Physiognomic Types -- Dry F

BLM / FS Lands

Historic to Current Transitions Alternative 1 C

current 

Late-serai intolera

Late-serai intolera

Late-serai tolerant 

Late-serai toleran

Early-serai intolerant forest (ESIF)

Early-serai tolerant forest (ESTF)

Mid-serai intolerant forest (MSIF)

Mid-serai tolerant forest (MSTF)

Current Physiognomic Type

Exotic Herbland (EXOT)

Upland Herbland (UH)

Upland Shrubland (US)

Historic Physiognomic Type Current 

Alternative 2 Current to Future Alternative 3 C
Transitions to Other Physiognomic Types - Dry Fore

BLM / FS Lands

800,000

600,000

I

•t 400,000

200,000

Alternative 4 Current to Future

e

....:*<

:&}!,

:•:<

:%•:•:

:

y :

II

EXOT US MSIF LSIF-MU MSTF LSTF-ML

UH ESIF LSIF-SL ESTF LSTF-SL

Current Physiognomic Type

800,000

600,000

VI

£

~ 400,000

<u

X

200,000

Alternative 5 Cu

mC'XO

a

EXOT US MSIF 

UH ESIF 

Current Ph

Alternative 6 Current to Future Alternative 7 Cur

Q)

Q.

o

0)

CD

m

o

I

800,000

600,000

in

£

S 400,000

200,000

i

$$&

r$

^

EXOT

MJ

US MSIF LSIF-ML MSTF LSTF-ML

UH ESIF LSIF-SL ESTF LSTF-SL

Current Physiognomic Type

EXOT US MSIF 

UH ESIF 

Current Phy

O Exotic Herbland (EXOT)

[~| Upland Herbland (UH)

• Upland Shrubland (US)

Early-serai intolerant forest (ESIF)

Early-serai tolerant forest (ESTF)

Mid-serai intolerant forest (MSIF)

Mid-serai tolerant forest (MSTF)

Late-serai intolera

Late-serai intolera

Late-serai tolerant 

Late-serai toleran
Transitions to Other Physiognomic Types - Moist 

BLM / FS Lands

Historic to Current Transitions Alternative 1 Curren

Early-serai intolerant forest (ESIF)

Early-serai tolerant forest (ESTF)

Mid-serai intolerant forest (MSIF)

Mid-serai tolerant forest (MSTF)

Late-serai intolerant forest single-lay

Late-serai intolerant forest multi-laye

Late-serai tolerant forest single-layer 

Late-serai tolerant forest mullti-laye

Historic Physiognomic lype Current Physio

Alternative 2 Current to Future Alternative 3 Curre

Current Physiognomic Type Current Phys
Transitions to Other Physiognomic Types - Mois

BLM / FS Lands

Alternative 4 Current to Future Alternative 5 Cu

Current Physiognomic Type Current P

Alternative 6 Current to Future Alternative 7 Cu

Current Physiognomic Type

Early-serai intolerant forest (ESIF)

Early-serai tolerant forest (ESTF)

Mid-serai intolerant forest (MSIF)

Mid-serai tolerant forest (MSTF)

Current P

Late-serai intolerant forest sin

Late-serai intolerant forest mu

Late-serai tolerant forest singl

Late-serai tolerant forest mul
Transitions to Other Physiognomic Types - Cool S

BLM / FS Lands

Historic to Current Transitions Alternative 1 Curr

Historic Physiognomic Type

 Current

 Phy

Alternative 2 Current to Future Alternative 3 Cu

Current Physiognomic Type Current P

Upland Shrublan

Upland Woodlan

Exotic Herbland (EXOT)

Upland Herbland (UH)
Transitions to Other Physiognomic Types - Coo

BLM / FS Lands

Alternative 4 Current to Future Alternative 5 Cur

Current Physiognomic Type Current Ph

Alternative 6 Current to Future Alternative 7 Cur

Current Physiognomic Type Current Ph

Upland Shrub

Upland Wood

Exotic Herbland (EXOT)

Upland Herbland (UH)
Transitions to Other Physiognomic Types -- Dry 

BLM / FS Lands

Historic to Current Transitions Alternative 1 Cur

Historic Physiognomic Type Current Ph

Alternative 2 Current to Future Alternative 3 Cur

Current Physiognomic Type Current Ph

Upland Shrubland (US) Upland Herbland (UH) Exotic Herbland (EXOT)
Transitions to Other Physiognomic Types - Dry S

BLM / FS Lands

Alternative 4 Current to Future Alternative 5 Curre

Current Physiognomic Type Current Phys

Alternative 6 Current to Future Alternative 7 Curre

Current Physiognomic Type Current Phys

Exotic Herbland (EXOT) Upland Herbland (UH) Upland Shrubland (US) 
Transitions to Other Physiognomic Types - Dry 

BLM / FS Lands

Historic to Current Transitions Alternative 1 Cur

t./xv-' i un LJV» t./\wi 

Historic Physiognomic Type Current Phy

Alternative 2 Current to Future Alternative 3 Cur

Current Physiognomic Type

Exotic Herbland (EXOT) Upland Herbland (UH)

Current Phy

Uplan
Transitions to Other Physiognomic Types -- Dr

BLM / FS Lands

Alternative 4 Current to Future Alternative 5 Cur

Current Physiognomic Type

Alternative 6 Current to Future

Current Phy

Alternative 7 C

Exotic Herbland (EXOT)

Current Physiognomic Type

Upland Herbland (UH)

Current P
384 Landscape Ecology
Appendix 2-K

Physiognomic type group trends by PVG for alternatives.

Landscape Ecology 365
EASTSIDE E.I.S.

COLD FOREST / LATE-SERAL INTO

MULTI-LAYER

BLM / FS Natural BLM / FS Ot

Other Ownership
UPPER COLUMBIA RIVER BA

COLD FOREST / LATE-SERAL INTO

MULTI-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

COLD FOREST / LATE-SERAL INTO

SINGLE-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

COLD FOREST / LATE-SERAL INTO

SINGLE-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

COLD FOREST / MID-SERAL INTOL

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

COLD FOREST / MID-SERAL INTOL

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

COOL SHRUB / EXOTICS

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

COOL SHRUB / EXOTICS

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E. I. S.

COOL SHRUB / UPLAND HERB

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

COOL SHRUB / UPLAND HERBL

BLM / FS Natural BLM / FS Ot

Other Ownership
EASTSIDE E. I. S.

COOL SHRUB / UPLAND SHRUB

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

COOL SHRUB / UPLAND SHRUBL

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

COOL SHRUB / UPLAND WOODL

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

COOL SHRUB / UPLAND WOODL

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

DRY FOREST / LATE-SERAL INTOL

MULTI-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

DRY FOREST / LATE-SERAL INTOL

MULTI-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E. I. S.

DRY FOREST / LATE-SERAL INTOL

SINGLE-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

DRY FOREST / LATE-SERAL INTOL

SINGLE-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

DRY FOREST / MID-SERAL INTOL

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

DRY FOREST / MID-SERAL INTOL

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

DRY FOREST / UPLAND HERBLA

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

DRY FOREST / UPLAND HERBLA

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

DRY FOREST / UPLAND SHRUBL

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

DRY FOREST / UPLAND SHRUBL

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S

DRY SHRUB / EXOTICS

BLM / FS Natural BLM / FS Oth

Other Ownership
UPPER COLUMBIA RIVER BA

DRY SHRUB / EXOTICS

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E. I. S.

DRY SHRUB / UPLAND HERBL

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BAS

DRY SHRUB / UPLAND HERBL

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E. I. S.

DRY SHRUB / UPLAND SHRUBL

BLM / FS Natural BLM / FS Ot

Other Ownership
UPPER COLUMBIA RIVER BA

DRY SHRUB / UPLAND SHRUBL

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E. I. S.

DRY SHRUB / UPLAND WOODLA

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

DRY SHRUB / UPLAND WOODLA

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E.I.S.

MOIST FOREST / LATE-SERAL INTO

MULTI-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

MOIST FOREST / LATE-SERAL INTO

MULTI-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
EASTSIDE E. I. S.

MOIST FOREST / LATE-SERAL INTO

SINGLE-LAYER

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

MOIST FOREST / LATE-SERAL INTO

SINGLE-LAYER

BLM/FS Natural BLM/FS O

Other Ownership
EASTSIDE E.I.S.

MOIST FOREST / MID-SERAL INTOL

BLM / FS Natural BLM / FS O

Other Ownership
UPPER COLUMBIA RIVER BA

MOIST FOREST / MID-SERAL INTOL

BLM / FS Natural BLM / FS O

Other Ownership
404 Landscape Ecology
Table 2L. 1. Problematic noxious weeds within range cluster 1, where they are problematic within the cluster, acres infe

PVTs which they are invading and to which they pose a threat within the dry grass, dry shrub, and cool shrub PVGs.

Weed

Species Location Within Cluster and Acreage

1 Dry Grass Dry Shrub Cool Shrub 

Diffuse Knapweed

Yellow Starthistle

a

CD

•a

CD

o

o

Rush

Skeleton-weed

1

 Deschutes County, Oregon, BLM Prineville

District, (especially along Deschutes River).

1

 Gilliam and Sherman counties, Oregon

along John Day River.

1

 Along south fork of John Day River, Grant

County, Oregon.

1

 Expected to expand greatly in next 10-20

years.

• As reported in 1990, 1 million acres in central

Oregon, of which 3-5% or 30,000-50,000

acres was on BLM, including some in this

cluster.

Especially southern Oregon, Klamath

County, BLM Lakeview District.

BLM Prineville District, Oregon; encroaching

upon rangeland from private lands, roads,

and waterways.

John Day Fossil Beds National Monument,

Oregon.

Between Mitchell and John Day River,

Wheeler County, Oregon; hundreds of small

infestations.

Expected to expand greatly in BLM's

Prineville District, Oregon, in next 10-20

years; reported as 20,000 acres in 1990 in

central Oregon counties, of which 15% or

3,000 acres was BLM-administered, probably within this cluster.

1

 BLM's Prineville District, along lower portion

of Deschutes River, Oregon; negligible infestation on BLM in 1990 due to its control, but

possible infestations in future.

Wheatgrass

Grassland

Antelope

Bitterbrush,

Big Sagebrush -

warm

Mountain Big

Sagebrush- M

west with Ju

Mountain Big

Sagebrush - 

west with Jun

Basin Big

Sagebrush
Table 2L.1 (continued).

Weed

Species Location Within Cluster and Acreage

1 Dry Grass Dry Shrub Cool Shru

Q)

3

Q.

(/)

O

Q)

0_

O

Leafy Spurge

Medusahead

Dalmatian Toadflax

Whitetop

Russian Knapweed

• Near Klamath Falls, Klamath County,

Oregon.

• As of 1991, not yet on BLM-administered

land in Prineville District, Oregon, but predicted soon.

• Klamath and Lake counties, Oregon; expected to expand greatly in next 10- 20 years.

• Jefferson and Wasco counties, Oregon.

• Along John Day River all the way to

Kimberly, Oregon; reported as extensive

along this river.

• 1 million acres reported in 1990 from central

Oregon, of which 20% or 200,000 acres was

on BLM-administered land, including some

in this cluster.

• Gilliam County, Oregon; on BLM-administered land.

• Sherman County, Oregon; along John Day

River.

• Grant County, Oregon; on private land.

• Expected to expand greatly in next 10-20

years.

• 25,000 acres reported 1990 from Umatilla,

Grant, and Harney counties, Oregon eastward, of which 5% or 1,250 acres was on

BLM, including some in this cluster; 5,000

acres reported in 1990 from central Oregon

counties, of which less than 1 % or 50 acres

was on BLM, east of Bend.

• Gilliam County, Oregon along John Day

River (minor problem in 1989).

• Deschutes County, Oregon.

• Expected to expand greatly in next 10-20

years.

• Along Lower John Day River, Oregon (minor

problem in 1989, more of a major problem

as of 1991).

• Prineville BLM District, Oregon, in general.

Low Sagebrush -

Mesic with Juniper;

Wyomic Big

Sagebrush - Warm

Mountain B

Sagebrush 

west with J

Mountain 

Sagebrush 

west with J

Wheatgrass

Grassland, Fescue

Grassland

Big Sagebrush -

warm
Table 2L.1 (continued).

Weed

Species Location Within Cluster and Acreage

1

 Dry Grass Dry Shrub Cool Shr

Scotch Thistle • Along Lower John Day River, Oregon (minor 

problem in 1989).

• Lakeview area, Oregon; probably private

land.

• Prineville BLM District in general, along

Deschutes River, Oregon.

Halogeton • Along Lower John Day River, Oregon

(reported as present).

Perennial • Along Lower John Day River, Oregon; 

Pepperweed reported as present.

Iberian and/or • Sherman and Wasco counties, Oregon;

Purple Starthistle reported as present.

Canada Thistle • Widespread. 

'Acre = 0.4047 hectare; acres listed are estimates and are not always specific only to BLM- and FS-administered lands.
Table 2L.2- Problematic noxious weeds within range cluster 2, where they are problematic within the cluster, acres 

1

sr

i.

(/)

o

CD

-a

CD

m

o

o

onr\

V*

PVTs which they

Weed

Species

Common Crupina

Diffuse Knapweed

Mediterranean

Sage

Leafy Spurge

Tansy Ragwort

are invading and to which they pose a threat w

Location Within Cluster and Acreage

1

• Mostly in north-central Washington and central Idaho (not real extensive yet, more in

the category of new invaders at present).

• Mostly in Washington in counties bordering

Cascade Crest; 820,000 acres in 1993, as

reported from half of the eastern

Washington counties; including a substantial

portion in this cluster.

• Idaho County, Idaho; 4,000 acres reported,

including some possibly in this cluster;

needs resolving.

• Central Idaho.

Western Montana.

• Northeast Oregon, Wallowa County.

ithin the dry grass, dry shrub, and coo

Dry Grass Dry Shrub

Wheatgrass

Grassland, Fescue

Grassland

Antelope

Bitterbrush, Big

Sagebrush

(in general)

Fescue Grassland,

Fescue Grassland

with Conifer

Proposed: Fescue

Grassland, Fescue

I shrub PVG

Cool Shru

Mountain 

Possibly M

Big Sageb

general) a

Mountain 

Possibly M

Big Sageb

general)

Proposed

Mountain 

Spotted Knapweed • Selway-Bitterroot Wilderness, Idaho,

Montana.

Yellow Starthistle Idaho County, Idaho, near Hells Canyon.

Grassland with

Conifer, Wheatgrass

Grassland

Fescue Grassland

(mountain

meadows)

Wheatgrass

Grassland

Possibly M

Big Sageb

general)

'Acre = 0.4047 hectare; acres listed are estimates and are not always specific only to BLM- and FS-administered lands.
Table 2L.3 - Problematic noxious weeds within range cluster 3, where they are problematic within the cluster, acres 

PVTs which they are invading and to which they pose a threat within the dry grass, dry shrub, and cool shrub PVG

Weed

Species Location Within Cluster and Acreage

1

 Dry Grass Dry Shrub Cool Shru

Whitetop • Northeast Oregon. Fescue Grassland, Big Sagebrush (in Big Sage

Fescue Grassland general) general)

with Conifer

Common Crupina • Central Idaho. Wheatgrass Mountain 

Grassland, Fescue 

Grassland 

Diffuse Knapweed • Northeast Washington; a large portion of the Antelope Bitterbrush Possibly M

820,000 acres reported from half of counties Big Sage

in eastern Washington in 1993 are in this (in genera

cluster.

• Northeast Oregon, Union County.

• As reported in 1990, about 500,000 acres in

Eastern Oregon (Umatilla, Grant, and

Harney counties and eastward), of which

less than 5,000 was on BLM.

Spotted Knapweed • Spokane County, Washington. Fescue Grassland Possibly M

• Ferry County, Washington. with Conifer, Fescue Big Sage

• Northern Idaho. Grassland, (in genera

• Northwest Montana. Wheatgrass

Grassland

Yellow Starthistle • Idaho, Lewis, and Nez Perce counties in Wheatgrass Antelope Bitterbrush 

Idaho; reported as 300,000 acres in Idaho. Grassland

• Klamath County, Oregon, Lakeview BLM

District.

Orange and Yellow Northern Idaho. Fescue Grassland 

Hawkweeds Northwest Montana. (mountain

Northeast Washington. meadows)

Leafy Spurge Northeast Oregon along Grande Ronde. Fescue Grassland, Proposed

Western Montana. Fescue Grassland Big Sageb

Idaho. with Conifer (in genera
Table 2L.3 (continued).

Weed

Species Location Within Cluster and Acreage' Dry Grass Dry Shrub Cool Shru

Squarrose • Union Co. Oregon; about 800 acres reported

Knapweed in 1990 in eastern Oregon, which is

Umatilla, Grant, and Harney counties eastward; none on BLM-administered lands.

Matgrass • Western Klamath County, Oregon. Wheatgrass

Grassland, Fescue

Grassland

Sulfur Cinquefoil • Western Montana; thousands of acres. Wheatgrass 

• Idaho Panhandle. Grassland, Fescue

• Northeast Washington. Grassland, Fescue

• Northeast Oregon. Grassland with

Conifer

Mediterranean Sage • Idaho County, Idaho; 4,000 acres, including

some in this cluster.

Tansy Ragwort • Union, Baker, Grant counties, in northeast Proposed: Fescue Proposed

Oregon. Grassland, Fescue Mountain 

Grassland with

Conifer, Wheatgrass

Grassland

Rush • Baker County, Oregon on the Powder River

Skeleton-weed arm of Brownlee Reservoir; fairly recent (last

five years) infestation in this county.

Canada Thistle • Widespread. 

Medusahead • Northeast Oregon. Mountain 

Sagebrus

(in gener

'Acre = 0.4047 hectare; acres listed are estimates and are not always specific only to BLM- and FS-administered lands.
Table 2L.4 — Problematic noxious weeds within range cluster 4, where they are problematic within the cluster, acr

PVTs which they are invading and to which they pose a threat within the dry grass, dry shrub, and cool shrub PVG

Weed

Species Location Within Cluster and Acreage

1

 Dry Grass Dry Shrub Cool Shr

Whitetop Northeast Oregon. Wheatgrass 

Lincoln County, Washington. Grassland

Diffuse Knapweed Northern Washington. Antelope 

Yakima Co. Washington. Bitterbrush, Big

Southern Grant Co. Washington. Sagebrush - Warm

Some of the 820,000 acres reported from

half of eastern Washington counties in 1993

are in this cluster.

Russian Knapweed • East-central Washington. Basin Big 

• Yakima County, Washington. Sagebrush

• Douglas County, Washington.

• Lincoln County, Washington.

Yellow Starthistle • Southeast Washington, especially Walla Wheatgrass Big Sagebrush -

Walla and Columbia counties; 148,000 Grassland, Fescue Warm

acres reported for Washington, most of Grassland

which was in these two counties.

• Umatilla County, Oregon; exceeds 286,000

acres, most of which is in this cluster.

Rush • Northwest Umatilla County, Vale BLM Wheatgrass

Skeleton-weed District, Oregon. Grassland, Fescue

• Franklin County, Washington; Juniper Grassland

Dunes Wilderness Area; possibly on BLMadministered lands in future.

• 998,000 acres in 15 eastern Washington

counties.

Leafy Spurge • Lincoln County, Washington; only 0.5 acre

at present.

Musk Thistle • Kittitas and Lincoln counties, Washington. 

Dalmatian Toadflax • Lincoln County, Washington. Big Sagebrush -

Warm
Table 2L.4 (continued).

Weed

Species Location Within Cluster and Acreage

1

 Dry Grass Dry Shrub Cool Shru

Canada Thistle • Widespread. 

Syrian Bean-Caper • Adams, Grant, Okanogan, and Whitman Proposed: Fescue Proposed: Big

counties, Washington; already present, but Grassland Sagebrush - Warm

in small acreages; possible in future; new

invader.

African Rue • Ephrata in Grant County, Washington; Proposed: Big

reported as present; new invader. Sagebrush - Warm

Iberian and/or • Asotin and Walla Walla counties, WashingPurple Starthistle ton; reported as present; new invader.

Saltcedar • Grant and Franklin counties, Washington, 

along Columbia River; about 350 acres.

'Acre = 0.4047 hectare; acres listed are estimates and are not always specific only to BLM- and FS-administered lands.
Table 2L.5 -Problematic noxious weeds within range cluster 5, where they are problematic within the cluster, acre

PVTs which they are invading and to which they pose a threat within the dry grass, dry shrub, and cool shrub PVG

Weed

Species Location Within Cluster and Acreage' Dry Grass Dry Shrub Cool Shru

Diffuse Knapweed • Along Cascade Crest in Washington, espe- Big Sagebrush - Possibly M

cially Kittitas County. Warm, Basin Big Big Sageb

• Baker Resource Area of BLM's Vale District, Sagebrush general)

Oregon, near Halfway.

• As reported in 1990, about 500,000 acres

in Eastern Oregon (Umatilla, Grant, and

Harney counties and eastward, of which

less than 5,000 was on BLM.

Yellow Starthistle • Hells Canyon area, Oregon. Wheatgrass Warm (particularly if

• Harney County, Oregon, Andrews Resource Grassland dominated by cheatArea BLM; minor problem in 1994, possibly Big Sagebrush - grass)

bigger problem in future.

• Southwest Idaho; reported as 300,000 acres

in Idaho, including some in this cluster.

• Reported in 1990 as 150,000 acres in eastern Oregon counties, (Umatilla, Grant, and

Harney counties eastward; of which 10% or

15,000 acres was on BLM-administered

land, including some in this cluster.

Spotted Knapweed • Eastern Idaho.

Rush • Southwest Idaho; reported as exceeding 4 Proposed: Fescue Proposed: Big Proposed

Skeleton-weed million acres, including some in this cluster. Grassland Sagebrush - Warm, Big Sageb

Basin Big general)

Sagebrush

Medusahead • Southwest Idaho. Wheatgrass Big Sagebrush - Mountain 

• Along Snake River in BLM's Vale District, Grassland Warm Sagebrus

Oregon. west, Mou

• Steens Mt. Oregon, Harney County. Sagebrus

• Elko Coutny, Nevada; 100,000 acres report- east, Mou

ed, including some in this cluster. Sagebrus

• 1.5 million acres reported in 1990 for east- west with 

ern Oregon counties (Umatilla, Grant, and

Harney counties, eastward), of which 60%

or 900,000 acres was on BLM-administered

land, including some in this cluster.

• Nearly 1 million acres reported for Idaho,

including a substantial but unknown portion

in this cluster.
0)

Q.

V)

O

Q)

T3

O

O

Table 2L.5 (continued).

Weed

Species

Mediterranean Sage

Location Within Cluster and Acreage

1

 Dry Grass

• Harney County, Oregon, BLM's Andrews

Dry Shrub Cool Shr

Russian Knapweed

Dalmatian Toadflax

Scotch Thistle

Perennial

Pepperweed

Whitetop

Halogeton

Purple Loosestrife

Leafy Spurge

Resource Area; minor problem as of 1994,

but possible infestation in future.

• 500 acres reported in 1990 from eastern

Oregon counties, (Umatilla, Grant, and

Harney counties eastward), of which 25% or

125 acres was on BLM-administered lands.

• Harney County, Oregon, BLM's Andrews

Resource Area; minor problem as of 1994,

but possible bigger problem in future.

• Harney County, Oregon, BLM's Andrews

Resource Area; minor problem as of 1994,

but probably bigger problem in future.

• Harney County, Oregon, BLM's Andrews

Resource Area; minor problem as of 1994,

but possibly bigger problem in future.

• Harney County, Oregon, BLM's Andrews

Resource Area; minor problem as of 1994,

but possibly bigger problem in future.

• Harney County, Oregon, BLM's Andrews

Resource Area; minor problem as of 1994,

but possibly bigger problem in future.

• Southeast Oregon, especially in southern

Harney County between Fields and Denio.

• Owyhee County, Idaho.

• Along Owyhee River in southeast Oregon;

100 acres reported in 1990 from eastern

Oregon counties, (Umatilla, Grant, and

Harney counties eastward), including some

in this cluster; none reported on BLM-administered lands.

• Along Snake River in western Idaho.

• Eastern Idaho.

Salt Desert Shrub

Fescue Grassland,

Fescue Grassland

with Conifer

Proposed

Big Sageb

(in genera
Table 2L.5 (continued).

Weed

Species

Tansy Ragwort

Location Within Cluster and Acreage

1

• Wallowa County, Oregon.

Dry Grass Dry Shrub

Proposed: Fescue

Grassland, Fescue

Cool Shru

Proposed

Mountain 

Canada Thistle

Grassland with

Conifer, Wheatgrass

Grassland

• Widespread. 

0)

U

Q.

V)

O

0)

T3

'Acre = 0.4047 hectare; acres listed are estimates and are not always specific only to BLM- and PS-administered lands.

O

O
1

r—

1

en

o

Q)

0>

mo

o

o

e?

Table 2L.6 - Problematic noxious weeds within range cluster 6, where they are problematic within

PVTs which they are invading and to which they pose a threat within the dry grass, dry shrub, and

Weed

Species

Dyers Woad

Perennial

Pepperweed

Halogeton

Diffuse Knapweed

Location Within Cluster and Acreage

1

• Southeast Idaho.

• Widespread.

• Southeast Oregon; BLM's Lakeview District.

• BLM's Vale District, Malheur Resource Area;

expected to expand greatly in next 1 0-20

years.

• Idaho.

• South-central Idaho, Blaine County; about

50,000 acres.

• Eastern Oregon.

Dry Grass

Fescue Grassland,

Fescue Grassland

with Conifer

Fescue Grassland

with Conifer

Dry Shrub

Big Sagebrush

Cool

Big Sagebrush

Warm

the cluster, acres 

cool shrub PVG

Cool Shru

Mountain 

Sagebrush 

east; Mou

Sagebrush 

West with 

Salt Dese

Mountain 

Sagebrush 

general)

Russian Knapweed

Yellow Starthistle

Leafy Spurge

Southeast Idaho; about 12,000 acres.

BLM's Lakeview District BLM, Oregon.

Malheur County, Oregon near Snake River.

Snake River Plains in western Idaho; reported as 300,000 acres in Idaho, some of

which is in this cluster.

Reported in 1990 as 150,000 acres in eastern Oregon counties (Umatilla, Grant, and

Harney eastward), of which 10% or 15,000

acres was BLM-administered, including

some in this cluster.

Baker County, Oregon.

Extreme Northeast Oregon, along Grande

Ronde; minor problem in 1993, but imminently more problematic.

South-central Idaho, Cassia County.

Eastern Idaho.

Wheatgrass

Grassland

Antelope 

Fescue Grassland,

Fescue Grassland

with Conifer

Mountain 

Sagebrush 

west with 

Mountain 

Sagebrush 

east
Table 2L.6 (continued).

Weed

Species Location Within Cluster and Acreage' Dry Grass Dry Shrub Cool Shrub 

Mediterranean Sage

0>

Q.

Q)

O

Medusahead • Western Idaho.

• Lake Co. Oregon (expected to expand greatly in next 10-20 years).

• Harney County, Oregon (especially northeast part).

• BLM's Vale District, Oregon; medusahead

moving south, expected to expand greatly in

next 10-20 years.

• 1.5 million acres reported in 1990 for eastern Oregon counties (Umatilla, Grant, and

Harney counties eastward), of which 60% or

900,000 acres was on BLM-administered

land, including some in this cluster.

• Nearly 1 million acres reported for Idaho,

including a substantial but unknown portion

in this cluster.

Lake and Harney counties, Oregon.

Fremont National Forest; expected to

expand greatly in next 10-20 years.

1 million acres reported in 1990 from central

Oregon counties, of which 20% or 200,000

acres was reported on BLM-administered

land, most believed to be in this cluster.

• Extreme northeast Oregon along Grande

Ronde; minor in extent, but could be problematic soon.

• Extreme northeast Oregon along Grande

Ronde; minor in extent, but could be problematic soon.

• Along Burnt River Canyon in BLM's Vale

District, Oregon.

Musk Thistle • Lake County, Oregon; minor problem as of

1991.

Whitetop • Lakeview District BLM, Oregon.

• BLM's Vale District, Oregon, especially along

roads.

Sulfur Cinquefoil

Scotch Thistle

Big Sagebrush

Warm; Low

Sagebrush

(in general).

Possibly Mo

Big Sagebru

(in general).

Big Sagebrush

Warm; Big

Sagebrush Cool
Table 2L.6 (continued).

Weed

Species Location Within Cluster and Acreage

1

 Dry Grass Dry Shrub Cool Shru

Spiny Cocklebur • BLM's Lakeview

• District, Oregon; minor problem as of 1991;

new invader.

St. Johnswort • Lakeview BLM District, Oregon; minor problem as of 1991.

Dalmatian Toadflax • Burns BLM District, Harney County, Oregon;

expected to expand greatly in next 10-20

years.

Spotted Knapweed • Near Riley, Oregon and along roads in

Burns BLM District, Oregon.

• Eastern Idaho.

Purple Loosestrife • Along Snake and Boise rivers in western 

Idaho.

Tansy Ragwort • Wallowa County, Oregon. Proposed: Fescue Proposed

Grassland, Fescue Mountain 

Grassland with

Conifer, Wheatgrass

Grassland

Rush • Western Idaho; reported as exceeding Fescue Grassland Big Sagebrush Mountain 

Skeleton-weed 4 million acres in southwest Idaho, includ- Warm, Basin Big Sagebrush 

ing some in this cluster. Sagebrush general)

Canada Thistle • Widespread. 

'Acre = 0.4047 hectare; acres listed are estimates and are not always specific only to BLM- and FS-administered lands.
Appendix 2-M

Table 2M.1— Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 1 on BLM- and FS-administered and Other lands. The High and

Moderate Susceptibility categories denote the number of hectares of the PVG that are of either High or

Moderate Susceptibility to invasion by at least one of the weed species analyzed in Karl and others (1995)

known to be present in this range cluster.

Potential Vegetation Type (PVT)

Dry Grass PVG

Wheatgrass Grassland

Fescue Grassland

Fescue Grassland with Conifer

Total Dry Grass:

High Susceptibility

Moderate Susceptibility

Dry Shrub PVG

Antelope Bitterbrush

Basin Big Sagebrush

Low Sagebrush Mesic

Low Sagebrush Mesic with Juniper

Big Sagebrush Warm

Big Sagebrush Cool

Salt Desert Shrub

Threetip Sagebrush

Total Dry Shrub:

High Susceptibility

Moderate Susceptibility

Cool Shrub PVG

Mountain Big Sagebrush Mesic East

Mountain Big Sagebrush Mesic East with Conifer

Mountain Big SagebrushMesic West

Mountain Big SagebrushMesic West with Juniper

Total Cool Shrub:

High Susceptibility

Moderate Susceptibility

Other PVGs

Cottonwood Riverine

Salix-Carex

Aspen

Mountain Mahogany

Mountain Mahogany with Mountain Big Sagebrush

Saltbrush Riparian

Juniper

Alpine Shrub-Herbaceous

BLM/FS

22,500

1,400

21,800

45,700

(11 2,925 acres)

45,700

45,700

2,100

6,000

1,400

700

234,500

31 ,600

100

300

276,700

(683,726 acres)

2,200

(5,436 acres)

276,700

22,700

9,300

1,200

325,600

358,800

(886,595 acres)

0

358,800

400

300

100

400

3,200

200

13,000

1,000

Other Lands

131,100

21,800

58,700

211,600

(522,864 acres)

211,600

21 1 ,600

3,500

40,000

900

28,800

585,700

44,000

1,000

703,900

(1 ,739,337 acres)

3,500

(8,648 acres)

703,900

64,700

9,100

3,200

408,400

485,400

(1,1 99,423 acres)

0

485,400

8,800

200

7,900

8,900

800

400

' Hectare =2.47 acres

Landscape Ecology 419
Table 2M.2 — Hectares1

 of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 2 on BLM- and FS-administered (EEIS). The High and Moderate

Susceptibility categories denote the number of hectares of the PVG that are of either High or Moderate

Susceptibility to invasion by at least one of the weed species analyzed in Karl and others (1995) known to

be present in this range cluster.

Potential Vegetation Type BLM/FS

Hectares

Dry Grass PVG

Wheatgrass Grassland 1,300

Fescue Grassland

Fescue Grassland with Conifer 27,800

Total Dry Grass: 29,100

(71,906 acres)

High Susceptibility 0

Moderate Susceptibility 29,100

Dry Shrub PVG

Antelope Bitterbrush 4,500

Basin Big Sagebrush

Low Sagebrush Mesic

Low Sagebruch Mesic with Juniper

Big Sagebrush Warm 100

Big Sagebrush Cool 300

Salt Desert Shrub

Threetip Sagebrush

Total Dry Shrub: 4,900

(12,108 acres)

High Susceptibility 4,500

(11,119 acres)

Moderate Susceptibility 4,900

Cool Shrub PVG

Mountain Big Sagebrush Mesic East 1,700

Mountain Big Sagebrush Mesic East with Conifer 4,700

Mountain Big Sagebrush Mesic West

Mountain Big Sagebrush Mesic West with Juniper 100

Mountain Shrub 2,800

Total Cool Shrub: 9300

(22,980 acres)

High Susceptibility None

Moderate Susceptibility 9,300

Other PVGs

Cottonwood Riverine

Salix-Carex

Aspen 1,400

Mountain Mahogany

Mountain Mahogany with Mountain Big Sagebrush

Saltbrush Riparian

Juniper

Alpine Shrub-Herbaceous 22,500

' Hectare = 2.47 acres

420 Landscape Ecology
Table 2M.3 — Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 2 on BLM- and FS-administered (UCRB). The High and Moderate

Susceptibility categories denote the number of hectares of the PVG that are of either High or Moderate

Susceptibility to invasion by at least one of the weed species analyzed in Karl and others (1995) known to

be present in this range cluster.

Potential Vegetation Type BLM/FS

Hectares

Dry Grass PVG

Wheatgrass Grassland 12,400

Fescue Grassland 100

Fescue Grassland with Conifer 39,300

Total Dry Grass: 51,800

(127,998 acres)

High susceptibility 51,800

Moderate susceptibility 51,800

Dry Shrub PVG

Antelope Bitterbrush

Basin Big Sagebrush

Low Sagebrush Mesic

Low Sagebrush Mesic with Juniper

Big Sagebrush Warm

Big Sagebrush Cool 4,000

Salt Desert Shrub

Threetip Sagebrush

Total Dry Shrub: 4,000

(9,884 acres)

High Susceptibility 4,000

Moderate susceptibility 4,000

Cool Shrub PVG

Mountain Big Sagebrush Mesic East 27,700

Mountain Big Sagebrush Mesic East with Conifer

Mountain Big Sagebrush Mesic West

Mountain Big Sagebrush Mesic West with Juniper

Total Cool Shrub: 27,700

(68,447 acres)

High Susceptibility 0

Moderate Susceptibility 27,700

Other PVGs

Cottonwood Riverine

Salix-Carex

Aspen 18,000

Mountain Mahogany 100

Mountain Mahogany wtih Mountain Big Sagebrush 600

Saltbrush Riparian

Mountain Riparian Low Shrub 3,500

Juniper 300

Alpine Shrub-Herbaceous 14,900

'Hectare = 2.47 acres

Landscape Ecology 421
Table 2M.4 - Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 3 on BLM- and FS-administered (EEIS). The High and Moderate

Susceptibility categories denote the number of hectares of the PVG that are of either High or Moderate

Susceptibility to invasion by at least one of the weed species analyzed in Karl and others (1995) known to

be present in this range cluster.

Potential Vegetation Type BLM/FS

Hectares

Dry Grass PVG

Wheatgrass Grassland 3,800

Fescue Grassland 700

Fescue Grassland with Conifer 64,900

Total Dry Grass: 69,400

(171,487 acres)

High Susceptibility

Moderate Susceptibility

Dry Shrub PVG

Antelope Bitterbrush 2,000

Basin Big Sagebrush 3,600

Low Sagebrush Mesic

Low Sagebrush Mesic with Juniper 1,000

Big Sagebrush Warm 11,600

Big Sagebruch Cool 6,400

Salt Desert Shrub

Th f eettp -Sagebrush

Total Dry Shrub: 24,600

(60,787 acres)

High Susceptibility

Moderate Susceptibility

Cool Shrub PVG

Mountain Big Sagebrush Mesic East 11,200

Mountain Big Sagebrush Mesic East w/Conifer 19,200

Mountain Big Sagebrush Mesic West 1,300

Mountain Big Sagebrush Mesic West w/Juniper 33,500

Mountain Shrub 1,200

Total Cool Shrub: 66400

(164074 acres)

High Susceptibility

Moderate Susceptibility

Other PVGs

Cottonwood Riverine 300

Salix-Carex 3,400

Aspen 2,700

Mountain Mahogany 100

Mountain Mahogany w/Mountain Big Sagebrush 700

Saltbrush Riparian 700

Mountain Riparian Low Shrub

Juniper

Alpine Shrub-Herbaceous 5,800

'Hectare = 2.47 acres

422 Landscape Ecology
Table 2M.5 — Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 3 on BLM- and FS-administered (UCRB). The High and Moderate

Susceptibility categories denote the number of hectares of the PVG that are of either High or Moderate

Susceptibility to invasion by at least one of the weed species analyzed in Karl and others (1995) known to

be present in this range cluster.

Potential Vegetation Type BLM/FS

Hectares

Dry Grass PVG

Wheatgrass Grassland 10,100

Fescue Grassland 5,400

Fescue Grassland w/Conifer 67,900

Total Dry Grass: 83,400

(206,081 acres)

High Susceptibility 83,400

Moderate Susceptibility 83,400

Dry Shrub PVG

Antelope Bitterbrush

Basin Big Sagebrush

Low Sagebrush Mesic

Low Sagebruch Mesic with Juniper

Big Sagebrush Warm

Big Sagebrush Cool 1,300

Salt Desert Shrub

Threetip Sagebrush 100

Total Dry Shrub: 1,400

(3,459 acres)

High Susceptibility 0

Moderate Susceptibility 1,400

Cool Shrub PVG

Mountain Big Sagebrush Mesic East 21,500

Mountain Big Sagebrush Mesic East with Conifer

Mountain Big Sagebrush Mesic West

Mountain Big Sagebrush Mesic West with Juniper 800

Total Cool Shrub: 22,300

(55,103 acres)

High Susceptibility 0

Moderate Susceptibility 22,300

Other PVGs

Cottonwood Riverine

Salix-Carex 3,900

Aspen 39,800

Mountain Mahogany

Mountain Mahogany with Mountain Big Sagebrush

Saltbrush Riparian 100

Mountain Riparian Low Shrub 1,400

Juniper

Alpine Shrub-Herbaceous 800

'Hectare = 2.47 acres

Landscape Ecology 423
Table 2M.6 — Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 4 on BLM- and FS-administered (EEIS). The High and Moderate

Susceptibility categories denote the number of hectares of the PVG that are of either High or Moderate

Susceptibility to invasion by at least one of the weed species analyzed in Karl and others (1995) known to

be present in this range cluster.

Potential Vegetation Type BLM/FS

Hectares

Dry Grass PVG

Agropyron Steppe 5,400

Fescue Grassland 3,500

Fescue Grassland w/Conifer 19,700

Total Dry Grass: 28,600

(70,671 acres)

High Susceptibility

Moderate Susceptibility

Dry Shrub PVG

Antelope Bitterbrush 1,500

Basin Big Sagebrush 6,800

Low Sagebrush Mesic

Low Sagebrush Mesic weith Juniper

Big Sagebrush Warm 37,700

Big Sagebrush Cool 400

Salt Desert Shrub

Threetip Sagebrush 600

Dry Shrub Total: 47,000

(116,137 acres)

High Susceptibility

Moderate Susceptibility

Cool Shrub PVG

Mountain Big Sagebrush Mesic East 400

Mountain Big Sagebrush Mesic East with Conifer

Mountain Big Sagebrush Mesic West 2,100

Mountain Big Sagebrush Mesic West with Juniper 2,500

Total Cool Shrub: 5,000

(12,355 acres)

High Susceptibility

Moderate Susceptibility

Other PVGs

Cottonwood Riverine

Salix-Carex 1,400

Aspen 5,100

Mountain Mahogany

Mountain Mahogany with Mountain Big Sagebrush

Saltbrush Riparian 100

Mountain Riparian Low Shrub

Juniper

Alpine Shrub-Herbaceous 400

'Hectare = 2.47 acres

424 Landscape Ecology
Table 2M.7—Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 5 on BLM- and FS-administered and Other lands (EEIS). The High and

Moderate Susceptibility categories denote the number of hectares of the PVG that are of either High or

Moderate Susceptibility to invasion by at least one of the weed species analyzed in Karl and others (1995)

known to be present in this range cluster.

Potential Vegetation Type

Dry Grass PVG

Wheatgrass Grassland

Fescue Grassland

Fescue Grassland w/Conifer

Total Dry Grass:

High Susceptibility

Moderate Susceptibility

Dry Shrub PVG

Antelope Bitterbrush

Basin Big Sagebrush

Low Sagebrush Mesic

Low Sagebrush Mesic w/Juniper

Low Sage Xeric

Big Sagebrush Warm

Big Sagebrush Cool

Salt Desert Shrub

Threetip Sagebrush

Total Dry Shrub:

High Susceptibility

Moderate Susceptibility

Cool Shrub PVG

Mountain Big Sagebrush Mesic East

Mountain Big Sagebrush Mesic East w/Conifer

Mountain Big Sagebrush Mesic West

Mountain Big Sagebrush Mesic West w/Juniper

Mt. Shrub

Total Cool Shrub:

High Susceptibility

Moderate Susceptibility

Other PVGs

Cottonwood Riverine

Salix-Carex

Aspen

Mountain Mahogany with Mountain Big Sagebrush

Saltbrush Riparian

Juniper

Alpine Shrub-Herbaceous

BLM/FS

17,400

5,900

54,400

77,700

77,700

(191 ,997 acres)

77,700

4,000

14,000

117,500

200

12,200

594,200

11,500

144,400

300

898,300

754,100

(1 ,863,381 acres)

898,300

(2,21 9,699 acres)

71 ,400

300

154,600

20,500

800

247,600

0

247,600

(61 1 ,820 acres)

200

6,400

2,000

2,600

4,500

10,700

Other Lands

8,000

3,100

29,100

40,200

40,200

(99,334 acres)

40,200

14,600

79,000

12,400

3,000

273,600

10,200

23,000

1,600

417,400

321 ,400

(794, 179 acres)

417,400

(1,031 ,395 acres)

46,400

100

23,500

33,700

2,900

106,600

0

106,600

(263,409 acres)

8,100

2,500

900

300

7,500

600

500

'Hectare = 2.47 acres

Landscape Ecology 425
Table 2M.8 - Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 5 on BLM- and FS-administered and Other lands (UCRB). The High

and Moderate Susceptibility categories denote the number of hectares of the PVG that are of either High

or Moderate Susceptibility to invasion by at least one of the weed species analyzed in Karl and others

(1995) known to be present in this range cluster.

Potential Vegetation Type

Dry Grass PVG

Wheatgrass Grassland

Fescue Grassland

Fescue Grassland with Conifer

Total Dry Grass:

High Susceptibility

Moderate Susceptibility

Dry Shrub PVG

Antelope Bitterbrush

Basin Big Sage Steppe

Low Sagebrush Mesic

Low Sagebrush Mesic with Juniper

Low Sage Xeric

Big Sagebrush Warm

Big Sagebrush Cool

Salt Desert Shrub

Threetip Sagebrush

Total Dry Shrub:

High Susceptibility

Moderate Susceptibility

Cool Shrub PVG

Mountain Big Sagebrush Mesic East

Mountain Big Sagebrush Mesic East with Conifer

Mountain Big Sagebrush Mesic West

Mountain Big Sagebrush Mesic West with Juniper

Mountain Shrub

Total Cool Shrub:

High Susceptibility

Moderate Susceptibility

Other PVGs

Cottonwood Riverine

Salix-Carex

Aspen

Mt. Mahogany

Mt. Mahogany with Mountain Big Sagebrush

Saltbrush Riparian

Mountain Riparian Low Shrub

Juniper

Alpine Shrub-Herbaceous

BLM/FS

Hr

32,500

72,500

234,300

339,300

339,300

(838,410 acres)

339,300

(838,410 acres)

32,800

42,100

303,900

5,800

90,600

1 ,086,200

307,400

77,900

77,300

2,024,000

0

2,024,000

(5,001 ,304 acres)

635,900

4,900

665,800

75,700

400

1 ,382,700

0

1,382,700

(3,41 6,652 acres)

1,200

1,200

154,700

1,400

27,900

24,500

1,000

12,000

17,300

Other Lands

^ft'llV"'*

4,900

10,100

57,000

72,000

72,000

(177,912 acres)

72,000

(177,912 acres)

10,600

29,900

89,500

800

78,200

220,900

51,200

45,000

32,100

558,200

0

558,200

(1,379,31 2 acres)

135,300

1,700

72,700

23,300

1,000

234,000

0

234,000

(578,21 4 acres)

5,700

400

26,100

500

1,600

21,300

3,600

1,000

'Hectare = 2.47 acres

428 Landscape Ecology
Table 2M.9 — Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 6 on BLM- and FS-administered and Other lands (EEIS). The High and

Moderate Susceptibility categories denote the number of hectares of the PVG that are of either High or

Moderate Susceptibility to invasion by at least one of the weed species analyzed in Karl and others (1995)

known to be present in this range cluster.

Potential Vegetation Type

Dry Grass PVG

Wheatgrass Grassland

Fescue Grassland

Fescue Grassland w/Conifer

Total Dry Grass:

High Susceptibility

Moderate Susceptibility

Dry Shrub PVG

Antelope Bitterbrush

Basin Big Sagebrush

Low Sagebrush Mesic

Low Sagebrush Mesic with Juniper

Low Sagebrush Xeric

Big Sagebrush Warm

Big Sagebrush Cool

Salt Desert Shrub

Threetip Sagebrush

Total Dry Shrub:

High Susceptibility

Moderate Susceptibility

Cool Shrub PVG

Mountain Big Sagebrush Mesic East

Mountain Big Sagebrush Mesic East with Conifer

Mountain Big Sagebrush Mesic West

Mountain Big Sagebrush Mesic West with Juniper

Mountain Shrub

Total Cool Shrub:

High Susceptibility

Moderate Susceptibility

Other PVGs

Cottonwood Riverine

Salix-Carex

Aspen

Mountain Mahogany

Mountain Mahogany with Mountain Big Sagebrush

Saltbrush Riparian

Juniper

Alpine Shrub-Herbaceous

BLM/FS

H opto ro*^

14,700

6,200

40,500

61,400

(151 ,71 9 acres)

61,400

61,400

300

26,400

86,500

2,000

40,200

2,403,400

75,000

456,200

400

3,090,400

(7,636,378 acres)

162,700

18,400

36,800

52,500

100

270,500

(668,405 acres)

200

4,200

300

37,200

73,300

6,000

1,400

Other Lands

14,200

4,600

55,500

74,300

31,100

75,900

1,300

21 ,800

922,400

34,900

93,300

300

1,181,000

112,300

1,800

13,600

80,900

208,600

500

1,500

700

9,500

40,900

6,300

800

'Hectare = 2.47 acres

Landscape Ecology 427
Table 2M.10 - Hectares' of potential vegetation types within 4th-field subbasins, by potential vegetation

group and type, for range cluster 6 on BLM- and FS-administered and Other lands (UCRB). The High

and Moderate Susceptibility categories denote the number of hectares of the PVG that are of either High

or Moderate Susceptibility to invasion by at least one of the weed species analyzed in Karl and others

(1995) known to be present in this range cluster.

Potential Vegetation Type BLM/FS Other Lands

Dry Grass PVG

Wheatgrass Grassland

Fescue Grassland

Fescue Grassland with Conifer

Total Dry Grass:

High Susceptibility

Moderate Susceptibility

Dry Shrub PVG

Antelope Bitterbrush

Basin Big Sagebrush

Low Sagebrush Mesic

Low Sagebrush Mesic with Juniper

Low Sagebrush Xeric

Big Sagebrush Warm

Big Sagebrush Cool

Salt Desert Shrub

Threetip Sagebrush

Total Dry Shrub:

High Susceptibility

Moderate Susceptibility

Cool Shrub PVG

Mountain Big Sagebrush Mesic East

Mountain Big Sagebrush Mesic East with Conifer

Mountain Big Sagebrush Mesic West

Mountain Big Sagebrush Mesic West with Juniper

Mountain Shrub

Total Cool Shrub:

High Susceptibility

Moderate Susceptibility

Other PVGs

Cottonwood Riverine

Salix-Carex

Aspen

Mountain Mahogany

Mountain Mahogany with Mountain Big Sagebrush

Saltbrush Riparian

Mountain Riparian Low Shrub

Juniper

Alpine Shrub-Herbaceous

neisid

9,500

31 ,600

144,200

185300

(457,876 acres)

185,300

185,300

5,000

92,400

41 ,300

43,100

1 ,468,200

40,600

12,900

10,500

1,714,000

337,600

1,800

74,200

51,700

5,800

471,100

100

500

168,800

6,400

300

17,200

14,400

4,300

LI CO

20,700

30,700

73,600

125,000

4,200

62,400

52,400

69,500

729,400

18,400

11,300

16,100

963,700

192,900

9,300

36,100

83,200

12,200

333,700

100

15,800

253,000

78,300

1,400

24,100

2,300

6,600

300

'Hectare = 2.47 acres

428 Landscape Ecology
Appendix 2-N

Table 2N. 1 — Emphasis of integrated weed management for PVTs in the dry grass potential vegetation

group by range cluster and alternative including: assumed acres' for weed control and livestock management per decade, integrated weed management steps, and PVTs prioritized for control efforts, in the EEIS

area.

Range

Cluster

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

Weed

Control1

17,500

0

0

0

30,000

77,500

17,500

0

0

0

30,000

125,000

2,500

0

0

0

2,500

22,500

12,500

0

0

0

7,500

87,500

7,500

0

0

0

17,500

45,000

Livestock

Management1

22,500

0

0

0

42,500

120,000

22,500

0

0

0

72,500

212,500

2,500

0

0

0

12,500

40,000

22,500

0

0

0

72,500

215,000

17,500

0

0

0

32,500

137,500

IWM Step

Emphasis

Alternative 3

5, 6, and 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 4

5, 6, and 7

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 5

5, 6, and 7

1 through 4

1 through 7

1 through 4

1 through 7

5, 6, and 7

Alternative 6

5, 6, and 7

1 through 7

1 through 7

5, 6, and 7

1 through 7

5, 6, and 7

Alternative 7

5, 6, and 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

PVT Susceptibility Emphasis

High

High

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

High

High

'Acreage on this table reflects modifications of further EIS analyses and, therefore, may be inconsistent with some text references based on earlier

analyses; acre = 0.4047 hectare.

Landscape Ecology
Table 2N.2 — Emphasis of integrated weed management for PVTs in the dry grass potential vegetation

group by range cluster and alternative, including: assumed acres' for weed control and livestock management per decade, integrated weed management steps to be emphasized, and PVTs prioritized for control

efforts, in the UCRB EIS area.

Range

Cluster

2

3

5

6

2

3

5

6

2

3

5

6

2

3

5

6

2

3

5

6

Weed

Control'

0

0

90,000

52,500

0

0

92,500

82,500

0

0

12,500

17,500

0

2,500

30,000

55,000

0

0

50,000

27,500

Livestock

Management1

0

0

140,000

77,500

0

0

247,500

140,000

0

0

45,000

27,500

0

0

247,500

140,000

0

0

115,000

92,500

IWM Step

Emphasis

Alternative 3

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

Alternative 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 5

1 through 4

1 through 7

1 through 7

5, 6, and 7

Alternative 6

1 through 7

1 through 7

1 through 7

5, 6, and 7

Alternative 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

PVT Susceptibility Emphasis

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

'Acreage figures on this table reflect modifications of further EIS analyses and, therefore, may be inconsistent with some text references based on

earlier analyses; acre = 0.4047 hectare.

430 Landscape Ecology
Table 2N.3 - Emphasis of integrated weed management for PVTs in the dry shrub potential vegetation

group by range cluster and alternative, including: assumed acres' scheduled for weed control and livestock

management per decade, integrated weed management steps, and PVTs prioritized for control efforts, in

the EEIS area.

Cluster

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

Weed

Control'

67,500

0

0

2,500

140,000

370,000

72,500

2,500

2,500

2,500

147,500

625,000

22,500

0

2,500

2,500

57,500

422,500

72,500

0

2,500

2,500

55,000

390,000

Livestock

Management1

105,000

7,500

7,500

2,500

185,000

552,500

112,500

7,500

12,500

2,500

357,500

1 ,052,500

40,000

7,500

7,500

2,500

215,000

640,000

112,500

2,500

12,500

2,500

357,500

1 ,055,000

IWM Step

Emphasis

Alternative 3

5, 6, and 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 4

5, 6, and 7

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 5

5, 6, and 7

1 through 4

1 through 7

1 through 4

1 through 7

5, 6, and 7

Alternative 6

5, 6, and 7

1 through 7

1 through 7

5, 6, and 7

1 through 7

5, 6, and 7

PVT Susceptibility Emphasis

High

High

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

Alternative 7

1

2

3

4

5

6

17,500

0

0

2,500

35,000

85,000

30,000

0

2,500

2,500

70,000

280,000

5, 6, and 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

High

High

High

High

High

High

'Acreage figures in this table reflect modifications of further EIS analyses and, therefore, may be inconsistent with some text references based on

earlier analyses; acre = 0.4047 hectare.

Landscape Ecology 431
Table 2N.4 - Emphasis of integrated weed management for PVTs in the dry shrub potential vegetation

group by range cluster and alternative, including: assumed acres1 scheduled for weed control and livestock

management per decade, integrated weed management steps, and PVTs prioritized for control efforts, in

the UCRB EIS area.

Cluster

2

3

5

6

2

3

5

6

2

3

5

6

2

3

5

6

2

3

5

6

Weed

Control1

0

0

427,500

247,500

0

2,500

455,000

417,500

0

2,500

155,000

287,500

2,500

0

150,000

265,000

0

0

102,500

60,000

Livestock

Management1

7,500

7,500

650,000

370,000

7,500

7,500

1,245,000

692,500

7,500

7,500

740,000

422,500

7,500

7,500

1 ,240,000

697,500

0

2,500

232,500

182,500

IWM Step

Emphasis

Alternative 3

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

Alternative 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 5

1 through 4

1 through 7

1 through 7

5, 6, and 7

Alternative 6

1 through 7

1 through 7

1 through 7

5, 6, and 7

Alternative 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

PVT Susceptibility Emphasis

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

'Acreage figures in this table reflect modifications of further EIS analyses and, therefore, may be inconsistent with some text references based on

earlier analyses; acre = 0.4047 hectare.

432 Landscape Ecology
Table 2N.5 - Emphasis of integrated weed management for PVTs in the cool shrub potential vegetation

group by range cluster and alternative, including: assumed acres' scheduled for weed control and livestock

management per decade, integrated weed management steps, and PVTs prioritized for control efforts, in the

EEIS EIS area.

Cluster

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

Weed

Control1

17,500

0

0

0

30,000

77,500

7,500

0

0

0

22,500

80,000

7,500

0

0

0

7,500

85,000

12,500

0

0

0

7,500

50,000

7,500

0

0

0

17,500

45,000

Livestock

Management1

22,500

0

2,500

0

40,000

120,000

12,500

0

0

0

50,000

145,000

7,500

2,500

2,500

0

40,000

120,000

12,500

0

0

0

50,000

145,000

17,500

0

0

0

35,000

135,000

IWM Step

Emphasis

Alternative 3

5, 6, and 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 4

5, 6, and 7

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 5

5, 6, and 7

1 through 4

1 through 7

1 through 4

1 through 7

5, 6, and 7

Alternative 6

5, 6, and 7

1 through 7

1 through 7

5, 6, and 7

1 through 7

5, 6, and 7

Alternative 7

5, 6, and 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

PVT Susceptibility Emphasis

High

High

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

High

High

'Acreage figures in this table reflect modifications of furrher EIS analyses and, therefore, may be inconsistent with text references based on earlier

analyses; acre = 0.4047 hectare.

Landscape Ecology 433
Table 2N.6 - Emphasis of integrated weed management for PVTs in the cool shrub potential vegetation

group by range cluster and alternatiave, including: assumed acres' scheduled for weed control and livestock

management per decade, integrated weed management steps, and PVTs prioritized for control efforts, in the

UCRB EIS area.

Cluster

2

3

5

6

2

3

5

6

2

3

5

6

2

3

5

6

2

3

5

6

Weed

Control1

0

0

90,000

52,500

0

0

60,000

55,000

0

0

30,000

55,000

0

0

20,000

35,000

0

0

50,000

30,000

Livestock

Management1

0

0

140,000

77,500

0

0

167,500

92,500

0

0

142,500

77,500

0

0

167,500

92,500

0

0

117,500

92,500

IWM Step

Emphasis

Alternative 3

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

Alternative 4

1 through 7

5, 6, and 7

5, 6, and 7

5, 6, and 7

Alternative 5

1 through 4

1 through 7

1 through 7

5, 6, and 7

Alternative 6

1 through 7

1 through 7

1 through 7

5, 6, and 7

Alternative 7

1 through 4

1 through 7

5, 6, and 7

5, 6, and 7

PVT Susceptibility Emphasis

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

High and Moderate

High and Moderate

High and Moderate

High and Moderate

High

High

High

High

'Acreage figures in this table reflect modifications of further EIS analyses and, therefore, may be inconsistent with text references based on earlier

analyses; acre = 0.4047 hectare.

434 Landscape Ecology